Tonsil-remover



G. F. RICHTER.

TONSIL REMOVER.

APPLICATION man APR. 15, 191s.

1,375,177. Patented Apr. 19, 1921.

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-GUSTAV F. RICHTER, OF BROOKLYN, NEW YORK.

TONSIL-REMOVER.

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Specication of Letters Patent. Patellid Api. 19, 1921.

. -App1ication filed April 15, 1919. Serial No. 290,144.

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Be it known that I, GUs'rAv F; RICHTER,

the saine length ofstroke asin the ordinary tonsillotome. t involves considerablemechanical complication to provide adequately forceful power rmeans giving a sufficiently long stroke and ordinary power multiplying means, if employed for this purpose, are' found to beslow and clumsy in operation n and to obstruct vision yofthe work.y The present Vinvention providesy a means for re? moving tonsils fby crushing'in which the closing movement is effected in two stages. The kfirst serves toV advance the blade member. into* the tonsil tissue without cutting it and to such extentas to condense and 'firmly compress the tissue along the intended line of severance. The second stage serves to complete the closing movement of said member, crushing offv the tonsil and involves the application ofthe power multiplying means which is thus only employed to make the short final stroke, the only part which requires great power and the operation ofl this means is yproperly safe-guarded so that it can only become active after the initial closing movement has been accomplished and the tonsil firmlycompressed. The improvements are illustrated in the accom?,

panying drawing which illustra-tes the form of the invention at present preferred and which will suffice to'indicate the principle involved and indicate other means by which the same principle may be used with equal effect.`

in said drawing- Figure l is a side elevation ofthe instru-v ment with the severing members in their fully opened position;

Fig. 2 a topplan showing the severing members in .the Vposition occupied atV the end ofl the first stage of closing movement;

, Fig. 3 Va longitudinal, enlarged section of Fig.V 2 with the power multiplying means about to act; and l Fig. e is a detailed section of the lock.

rlhe severingmembers are marked l and 2 of which l may be regarded-as a blade and 2 the bed with which it cooperates and which in the present case consists of a semi-circular bar with av groove along its inner circumference to receive the blunt edge of the blade. The bed member 2 is carried o n the end of a frame shank?) and the blade mem@ ber l is'similarly carried on the end of a bladevshank l superposed upon shank 3 and appropriately confined thereon for longitudinal reciprocation. The confining means consists in the present case ofV the parallel? extremities of the bed groove identified at 5 in Fig. 2 and forming a slideway to receive the enlarged end of the blade shank or the blade itself. The outer end of the blade shank is further confined by a stud 6 on the frame shank projecting through a vslot 7 in the blade shank and connected to a stiff spring 8 overlying said shank. The spring 8 is connected to the post by a bayonet vjoint connection as indicated in 3 so that it Vcan be removed when necessary and the slot 7 is of sufficient length to permit the blade to he withdrawn from the guideway 5 and then lifted olf of the post and the frame shank. A small projection 9 on the vunder face of spring 8 is adapted to occupy the slot 7 when the spring is in place and servesv as an abutment limiting the opening movel:ment of the blade and also serves as a retainer for the bayonet joint which is so constructed that it cannot be unlocked until the spring has been turned at right angles to the Shanks. Thus the operation of removing the blade shank from the frame of the. instrument consists merely in lifting the projection 9 out of the slot 7 turning the spring 8 to a ltransverse position, then pushing it endw'ise until the lhead of stud 6 can be passed through the large part of the bayonet slot and then withdrawing the Ablade from the guideway 5 andffrom the frame. It will be plain to persons skilled in the surgical instrumentL art that various other means of removably confining the two blade members inoperative relation may be used 'in place of that above described and with the same effect.

When the blade member has been moved outwardly until the inner end of the slot 7 'bep operated prematurely.

.itial closing movement. The

abuts against the stop pin 9 on the spring the severing members are in their opened position and ready to be placed so that the tonsil to be severed projects betweenfthem. The outer end of the blade member carries a thumb -piece 10 andthe outer endof the frame shank 8 is equipped withl a grip 11 extending substantially at right angles thereto and in such position that when in the operators hand, the thumb can be used for forcing the thumb-piece 10 and `blade toward the tonsil, forcing the blade 1 toward its bed 2, thus producing the initial closing movement of the severing members. rlhecoperating grip member 12 is a lever fulcrumed inl the frame at 13l and having a short arm provided with a cam surface 14 and adapted' to enter a slot 15 in the blade shank 4 engaging with the inner -end of said slot. The cam surface 14 is so related to the end of the slot 15 that the closing of the grip' membersA 11 and 12 will exert a powerful endwise thrust on the blade shank 4 and thereby drive the blade 1 toward and into the groove of its bed 2 thus completing the second and final stroke of the clos# ing movement. lt will be obvious that the power multiplying means represented by the levers 12 and 11 cannot engage upon the blade'shank 4 until the lattter has been closedlsufciently to bring the slet 15 into registry vwith the short arm of lever 12. This position of the slot will ordinarily be observed by the operator but for the purpose of preventing premature use of the power means a loch is provided for the latter and arranged to be automatically released by the blade shank when its notch 15 has reached a position to be engaged by the cam surface 14. Locking means for this purpose may be variously constructed. That herein illustrated consists of a spring' blade'l mounted on the side of the grip lever 11 and carrying a hardened steel locking lug 17 which enters a hole in the frame shank 3 and is adapted to enter a similar hole 18 in the grip lever 12 when the two levers are in their .most widely separated position and thus lock said grip lever against operation. The upper endvof the spring 16 projects alongside the blade shank 4 in a position in which it is adapted to be:

engaged by a cam 19 on the side of latter as indicated in Fig. 2. The cam 19 is so located that it engages and forces the spring 16 and its locking stud 17 laterally and out.

of engagement with the lever hole 18 when the blade members have completedtheir yny grip members may then be operated to perform the second stage of the closing process but cannot Being held against closing during the initial stage the grip levers 11 and 12 constitute a very satisfactoryhandle for the device as a whole permitting the free manipulation by the thumbfor linger of the thumb piece 10.

It will now be apparent that the principle of this invention, comprising an organiza- Vtion of elements permitting a two-stage closingv of the blade members, can be embodiedv in different forms of apparatus and can utilize different kinds of Vpower multi-l plying means for producing great pressure in the second stageand thatl variousV modi- `blade guided therein adapted to close 'on the tonsil and a two-stagel closing means therefor comprising a thumb -or-.in'geroperated member for intially closing the bed and blade on Vthe tonsil to compress the same and levers to be 'gripped within the hand for completing thefclosing movement.

2. A tonsil remover comprising overlying relatively reciprocatingshanks, one carrying a vblade and the other a bed therefor and adapted to be 'closed on the tonsil and a two-stage closing means therefor comprising a thumb-push and a pair of grip levers connected substantially at right vangles to said Shanks, and means for p'redetermining Y the successive operation ofsaidmeans.

3. A tonsil removercomprising a bed and Y blade adapted to be closed on the tonsil, two

members for closing the same, and means for locking one member untilfthe other has been operated. l

4. A tonsil remover comprising bed and blade members adapted to be closed on the tonsil, a hand griphon one ofsaid members, a thumb-push on the other and a grip lever for applying power to the last named member,y and means for predetermining the sequence of operation of said push and lever.

5. A tonsil remover comprising bed and blade members adapted to be closed on the tonsil, two closing members therefor, a lockV normally locking one of said members and means associated with the other member adapted to release the lock. s

6. A tonsil remover comprising a bed, a coperating blade, the two being adapted to close onthe tonsil, and a two stage closing means therefor comprising a member operable by a movement of a finger toward the tonsil, for initially closing the bed and blade on the tonsil, and power multiplying means for completing the closing movement.

7. A tonsil remover comprising severing members consisting of a bedrand a Ablade adapted Yto close on the tonsil, and a two stage closing means therefor comprising a part connected to each of said severing members engageable by the operators hand and thereunder cooperating to initially close said severing members, and a lever simultaneously engageable by the same hand Jfor oompleting the closure thereof.

8. A tonsil remover comprising severing members consisting of a bed and a blade adapted to close on the tonsil, and a tvvo stage closing means therefor comprising a part connected to one of said Severin members and a slidable member connecte to the other of said severing members, said part and slidable members being arranged to be cooperatively engaged by the operators hand to initially close said bed and blade, and a grip lever adjacent said slidable member, to be gripped Within the hand for completing the closing movement.

In testimony whereof, I have signed this specification. Y

GUsTAv F. RieHTER. 

